(a) Any health care facility licensed under this chapter which is not a participant in a hospital service plan shall post a notice, in a conspicuous place where it can be read by its patients which shall read, in substance, as follows:
To our patients:
This facility does not participate in a hospital service plan. You should know that you will be responsible for the payment of the hospital fees which you incur here.
(b) Any licensed health care facility which fails to post a disclosure notice shall not be entitled to charge any of its patients any amount, for hospital fees, in excess of that allowed had the facility participated in a hospital service plan.